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Exhaust and Intake Noise and Acoustical Design of Mufflers
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, MWL Marcus Wallenberg Laboratoriet.ORCID-id: 0000-0002-3826-3055
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, MWL Strömningsakustik.ORCID-id: 0000-0002-8474-8563
2008 (Engelska)Ingår i: Handbook of Noise and Vibration Control / [ed] Malcolm J. Crocker, John Wiley & Sons, 2008, s. 1034-1053Kapitel i bok, del av antologi (Refereegranskat)
Abstract [en]

A muffler or silencer is a device used in a flow duct to prevent sound from reaching the openings of the duct and radiating as far-field sound. Reactive silencers do this by reflecting sound back towards the source while absorptive silencers attenuate sound using absorbing material. They are necessary components in the design of any exhaust or intake system for internal combustion (IC) engines. No car or truck can pass the standard noise tests required by legislation or compete on the market without them. There are three basic requirements for a modern exhaust systems; compact outer geometry, sufficient attenuation and low pressure drop.

 

The aim of this chapter is to discuss acoustical design and analysis of IC-engine exhaust and intake systems. The specific problems of modern intake systems made from plastic material with non-rigid walls are not discussed because not much has been published on this subject. The theory and techniques presented can be used also for other applications such as compressors and pumps and to some extent also for air-conditioning and ventilation systems.

Ort, förlag, år, upplaga, sidor
John Wiley & Sons, 2008. s. 1034-1053
Nyckelord [en]
IC-engine noise, mufflers, exhaust system, intake system, aftertreatment, source characterisation
Nationell ämneskategori
Teknik och teknologier
Identifikatorer
URN: urn:nbn:se:kth:diva-62402DOI: 10.1002/9780470209707.ch85Scopus ID: 2-s2.0-84891307466ISBN: 978-0-471-39599-7 (tryckt)OAI: oai:DiVA.org:kth-62402DiVA, id: diva2:480262
Anmärkning

QC 20120306. QC 20160129

Tillgänglig från: 2012-01-19 Skapad: 2012-01-19 Senast uppdaterad: 2016-01-29Bibliografiskt granskad

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Glav, RagnarBodén, Hans

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